Correction
Physics, Multidisciplinary
W. S. Lee, Ke-Jin Zhou, M. Hepting, J. Li, A. Nag, A. C. Walters, M. Garcia-Fernandez, H. C. Robarts, M. Hashimoto, H. Lu, B. Nosarzewski, D. Song, H. Eisaki, Z. X. Shen, B. Moritz, J. Zaanen, T. P. Devereaux
Summary: The paper has been amended with a link provided for access at the top of the document.
Article
Physics, Multidisciplinary
Long Zhang, Chengxiang Ding
Summary: The nondivergence of the generalized Gruneisen ratio (GR) at a quantum critical point (QCP) is proposed as a universal thermodynamic signature of self-duality. The study explores how the Kramers-Wannier-type self-duality is manifested in the finite-size scaling behavior of thermodynamic quantities in the quantum critical regime. The results indicate that the identification of proper symmetry sectors is necessary for the numerical diagnosis of self-dual QCP.
CHINESE PHYSICS LETTERS
(2023)
Article
Physics, Condensed Matter
Alexander Khaetskii, Vladimir Juricic, Alexander Balatskyl
Summary: Modern condensed matter physics is interested in the entanglement of two different quantum orders, such as dynamic multiferroicity where fluctuations of electric dipoles lead to magnetization. Researchers have found an elevated magnetic response in ferroelectric materials near the ferroelectric quantum critical point, which has been demonstrated through calculations. They propose using quantum paraelectric strontium titanate as a candidate material to search for dynamic multiferroicity, estimating its detectable magnitude experimentally.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2021)
Article
Materials Science, Multidisciplinary
Xiao-Tian Zhang, Gang Chen
Summary: We study a unique type of non-Fermi liquid that has an infinite number of critical bosonic modes instead of a finite number of bosonic modes, unlike the conventional ones. We examine itinerant magnets with both conduction electrons and fluctuating magnetic moments in three dimensions. Due to the Dzyaloshinskii-Moriya interaction, the moments fluctuate near a boson surface in the reciprocal space at low energies as the system approaches an ordering transition. The infinite number of critical modes on the boson surface strongly scatter the gapless electrons on the Fermi surface, resulting in the conversion of the metallic sector into a non-Fermi liquid. We explain the physical properties of this non-Fermi liquid. On the ordered side, a conventional non-Fermi liquid emerges due to the scattering by the gapless Goldstone mode resulting from the spontaneous breaking of the global rotational symmetry. We discuss the general structure of the phase diagram near the quantum phase transition and clarify various crossover behaviors.
NPJ QUANTUM MATERIALS
(2023)
Article
Physics, Multidisciplinary
Emma C. King, Johannes N. Kriel, Michael Kastner
Summary: We studied the Adiabatic loss in cooling a many-body quantum system towards a quantum critical point. The excitation density that represents the degree of adiabaticity follows scaling laws with cooling velocity, initial, and final temperatures. These scaling laws are universal and depend on the critical exponents of the quantum phase transition. We analytically showed the validity of these statements for a Kitaev quantum wire coupled to Markovian baths and argued their general applicability.
PHYSICAL REVIEW LETTERS
(2023)
Article
Physics, Multidisciplinary
Yawen Fang, Gael Grissonnanche, Anaelle Legros, Simon Verret, Francis Laliberte, Clement Collignon, Amirreza Ataei, Maxime Dion, Jianshi Zhou, David Graf, Michael J. Lawler, Paul A. Goddard, Louis Taillefer, B. J. Ramshaw
Summary: The nature of the pseudogap phase in cuprate high-temperature superconductors remains a major puzzle, especially regarding the topology of its Fermi surface. Angle-dependent magnetoresistance (ADMR) data suggests that within the pseudogap phase, the Fermi surface undergoes a transformation consistent with the presence of small nodal hole pockets. This indicates a change in the form of the Fermi surface when the pseudogap is present, potentially explaining the low carrier density in this regime.
Article
Chemistry, Multidisciplinary
Molly P. Andersen, Evgeny Mikheev, Ilan T. Rosen, Lixuan Tai, Peng Zhang, Kang L. Wang, Marc A. Kastner, David Goldhaber-Gordon
Summary: The quantum coherence-driven universal conductance fluctuations in the topological material MnBi2Te4 thin film were studied. It was found that the conductance magnetofingerprint depends on the direction of the magnetic field sweep, which may be due to the motion and nucleation of magnetic domain walls.
Article
Chemistry, Physical
J. J. Himanshu
Summary: This study investigates the physical characteristics of the 4K superconductor LaCoSi using first-principles density functional theory. It is found that LaCoSi exhibits a ferromagnetic ground state, which contradicts experimental results. Based on calculations, it is suggested that the superconductivity observed in LaCoSi is closely related to a ferromagnetic quantum critical point.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Peter E. Siegfried, Hari Bhandari, Jeanie Qi, Rojila Ghimire, Jayadeep Joshi, Zachary T. Messegee, Willie B. Beeson, Kai Liu, Madhav Prasad Ghimire, Yanliu Dang, Huairuo Zhang, Albert V. Davydov, Xiaoyan Tan, Patrick M. Vora, Igor I. Mazin, Nirmal J. Ghimire
Summary: By utilizing ab initio calculations and measurements of magnetic, thermal, and transport properties, it is demonstrated that orthorhombic CoTe2 is near ferromagnetism, which is suppressed by spin fluctuations. Calculations and transport measurements reveal the presence of nodal Dirac lines, making it a rare combination of proximity to quantum criticality and Dirac topology.
ADVANCED MATERIALS
(2023)
Article
Multidisciplinary Sciences
Kousuke Ishida, Yugo Onishi, Masaya Tsujii, Kiyotaka Mukasa, Mingwei Qiu, Mikihiko Saito, Yuichi Sugimura, Kohei Matsuura, Yuta Mizukami, Kenichiro Hashimoto, Takasada Shibauchi
Summary: This study demonstrates the presence of a diverging nematic susceptibility electronic nematic QCP in nonmagnetic FeSe1-x Te-x. In contrast to FeSe1-x S-x, FeSe1-x Te-x exhibits a superconducting dome centered at the QCP. This difference is related to the relative strength of nematic and spin fluctuations.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Physics, Multidisciplinary
Carolyn Zhang, Michael Levin
Summary: We propose an exactly solvable lattice model to study the deconfined quantum critical point (DQCP) in (1+1) dimensions, which occurs at the edge of a (2+1) dimensional bosonic symmetry protected topological (SPT) phase with 7L2 x 7L2 symmetry. The DQCP describes a transition between two gapped edges that break different 7L2 subgroups of the full 7L2 x 7L2 symmetry. This model provides an exact mapping between the SPT edge theory and a 7L4 spin chain, revealing the close relationship between DQCPs in this system and ordinary 7L4 symmetry breaking critical points.
PHYSICAL REVIEW LETTERS
(2023)
Article
Astronomy & Astrophysics
Jens Boos, Valeri P. Frolov, Andrei Zelnikov
Summary: The paper analyzes the Bogoliubov coefficients and spectrum of created particles in a local quantum theory of a scalar field interacting with a delta-shaped time-dependent potential. It then explores how these considerations are influenced by nonlocality when generalized to a specific nonlocal infinite-derivative quantum theory. In this model, nonlocality results in significant resonant amplification of certain modes, affecting both the particle spectrum and total number density of created particles.
Article
Chemistry, Physical
J. J. Himanshu, J. J. Pulikkotil
Summary: This study investigates the physical characteristics of the 4 K superconductor LaCoSi using first-principles density functional theory. The results show that the predicted ferromagnetic ground state for LaCoSi disagrees with experimental observations. However, it is suggested that the superconductivity in LaCoSi is closely related to a ferromagnetic quantum critical point.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Physics, Mathematical
Kartick Adhikari, Subhroshekhar Ghosh, Joel L. Lebowitz
Summary: This study investigates the statistical properties of translation invariant random fields under constraints on their spectrum or structure function, focusing on hyperuniform and stealthy hyperuniform systems. Key features such as fluctuations and entropy are found to be influenced by local aspects of the structure function, with spatial geometric considerations playing an important role. The study reveals oscillatory behavior of spatial correlations of local masses and general conditions under which the field of local masses exhibit Gaussian asymptotics, with an explicit limit described. Additionally, it demonstrates that stealthy hyperuniform systems with joint densities exhibit degeneracy in their asymptotic entropy per site.
COMMUNICATIONS IN MATHEMATICAL PHYSICS
(2021)
Article
Astronomy & Astrophysics
Fulvio Melia
Summary: The recent analysis of Planck data suggests a cutoff in the primordial power spectrum related to the first quantum fluctuation emerging into the semi-classical universe. This has important implications for the question of classicalization.
Article
Chemistry, Analytical
Alicja Dabrowska, Mauro David, Stephan Freitag, Aaron Maxwell Andrews, Gottfried Strasser, Borislav Hinkov, Andreas Schwaighofer, Bernhard Lendl
Summary: Mid-infrared chemical sensors based on quantum cascade technology were developed for broadband detection of aqueous samples targeting bovine milk proteins. The setup combined a tunable quantum cascade laser with a spectrally tailored in-house fabricated quantum cascade detector, showing similar performance to a high-end FTIR spectrometer. The study highlights the potential of quantum cascade detectors in next-generation MIR liquid-phase chemical sensors with low noise and high dynamic range.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Physics, Applied
M. Jaidl, N. Opacak, M. A. Kainz, D. Theiner, B. Limbacher, M. Beiser, M. Giparakis, A. M. Andrews, G. Strasser, B. Schwarz, J. Darmo, K. Unterrainer
Summary: This paper demonstrates terahertz quantum cascade lasers realized in ideal ring resonators without discontinuities, achieved by mounting the rings upside down on a silicon substrate using a die-bonding technique. The lasers emit light around 3.8 THz, show reduced threshold current densities, and exhibit frequency comb formation.
APPLIED PHYSICS LETTERS
(2022)
Article
Materials Science, Multidisciplinary
M. A. U. R. O. DAVID, D. A. V. I. D. E. DISNAN, A. N. N. A. LARDSCHNEIDER, D. O. M. I. N. I. K. WACHT, H. A. N. H. T. HOANG, G. E. O. R. G. RAMER, H. E. R. M. A. N. N. DETZ, B. E. R. N. H. A. R. D. LENDL, U. L. R. I. C. H. SCHMID, G. O. T. T. F. R. I. E. D. STRASSER, B. O. R. I. S. L. A. V. HINKOV
Summary: This study investigates the optical and structural properties of spin-coated linear low-density polyethylene films fabricated under humidity-controlled conditions. The non-linear behavior of film thickness on polymer concentration dependence is observed, allowing for predictive concentration-dependent thickness deposition. The films exhibit nanometer-scale surface roughness and good stability when exposed to solvents. Mid-infrared ellipsometry measurements confirm the broad transparency range of the films, making them suitable for use in photonic integrated circuits.
OPTICAL MATERIALS EXPRESS
(2022)
Article
Physics, Applied
Sandro Dal Cin, Florian Pilat, Ales Konecny, Nikola Opacak, Gottfried Strasser, Benedikt Schwarz
Summary: This study demonstrates coherent control of longitudinal laser modes in a quantum cascade laser, enabling control over the transverse modes. By modulating the laser within a specific frequency range and applying sufficient power, reliable operation of fundamental transverse modes with single-lobe, Gaussian-like characteristics in the far-field can be achieved.
APPLIED PHYSICS LETTERS
(2022)
Article
Multidisciplinary Sciences
Borislav Hinkov, Florian Pilat, Laurin Lux, Patricia L. Souza, Mauro David, Andreas Schwaighofer, Daniela Ristanic, Benedikt Schwarz, Hermann Detz, Aaron M. Andrews, Bernhard Lendl, Gottfried Strasser
Summary: The authors demonstrate sensitive real-time reaction monitoring of conformational changes in protein solution using a fingertip-sized mid-infrared lab-on-a-chip.
NATURE COMMUNICATIONS
(2022)
Article
Physics, Multidisciplinary
Ching-Chen Yeh, Siang-Chi Wang, Shun-Tsung Lo, Gil-Ho Kim, D. A. Ritchie, Gottfried Strasser, Chi-Te Liang
Summary: We have observed a temperature-independent point Bc in the longitudinal resistance Rxx of a GaAs-based two-dimensional electron gas during the quantum Hall plateau-plateau transition. This discovery allows us to re-examine the spin-degenerate plateau-plateau transition and calculate the critical exponent kappa by measuring the movement of the Rxx peak with respect to Bc at different temperatures. We propose measuring the maximum derivative of Hall resistivity d(rho xy)/dB similar to T-kappa as well as the movement of Rxx at different temperatures to determine kappa s using two independent methods. When the peak movement deviates significantly from Bc, a kappa value of 0.54 +/- 0.04 can be measured, which is considerably different from the value (0.21 +/- 0.02) in some spin-degenerate systems.
CHINESE JOURNAL OF PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Michael Wais, Filchito Renee G. Bagsican, Natsumi Komatsu, Weilu Gao, Kazunori Serita, Hironaru Murakami, Karsten Held, Iwao Kawayama, Junichiro Kono, Marco Battiato, Masayoshi Tonouchi
Summary: The confinement of quasiparticles in carbon nanotubes leads to anisotropic electronic and optical properties. In random ensembles of nanotubes, this anisotropy disappears. We compare the dynamics of quasiparticles in aligned and random carbon nanotube networks and find that alignment strongly influences their behavior.
Article
Crystallography
Monika Luznik, Guenther Lientschnig, Mathieu Taupin, Andreas Steiger-Thirsfeld, Andrey Prokofiev, Silke Paschen
Summary: This study focuses on reducing phonon thermal conductivity even further by creating mesoscopic wires out of the clathrate material La1.2Ba6.8Au5.8Si38.8.
Article
Optics
Fuyang Tay, Swati Chaudhary, Jiaming He, Nicolas Marquez Peraca, Andrey Baydin, Gregory A. Fiete, Jianshi Zhou, Junichiro Kono
Summary: Investigated the THz response of La0.875Sr0.125MnO3 single crystal and observed significant magnetic field-induced changes in THz resistance and capacitance. Discussed the possible mechanisms for the coexistence of colossal THz magnetoresistance and magnetocapacitance. This study enhances our understanding of colossal magnetoresistance in THz technology.
Article
Chemistry, Multidisciplinary
Shinichiro Matano, Natsumi Komatsu, Yui Shimura, Junichiro Kono, Hideyuki Maki
Summary: A broadband thermal emitter of polarized infrared radiation with high switching speeds has been developed using aligned carbon nanotube films, which can lead to advanced spectroscopic analysis techniques with polarized radiation.
Article
Instruments & Instrumentation
Jianwei Huang, Ziqin Yue, Andrey Baydin, Hanyu Zhu, Hiroyuki Nojiri, Junichiro Kono, Yu He, Ming Yi
Summary: This paper introduces an easily implementable method for realizing an in situ tunable magnetic field at the sample position in an ARPES experiment and analyzes the magnetic-field-induced artifacts in the ARPES data. The authors identified and quantified three distinct extrinsic effects of a magnetic field and demonstrated the feasibility of ARPES measurements in the presence of a controllable magnetic field in three prototypical quantum materials.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2023)
Article
Biochemical Research Methods
Florian Pilat, Benedikt Schwarz, Bettina Baumgartner, Daniela Ristanic, Hermann Detz, Aaron M. M. Andrews, Bernhard Lendl, Gottfried Strasser, Borislav Hinkov
Summary: Quality control of liquids plays a crucial role in analytical chemistry, and the gold standard for measuring residual water in organic solvents and pharmaceutical applications is Karl Fischer titration. A high-performance lab-on-a-chip sensor based on mid-IR spectroscopy is proposed for real-time analysis of residual water concentration in isopropyl alcohol. Two experiments demonstrate its ability to detect water content with high sensitivity and rapid response time. The sensor achieves a limit of detection between 120 ppm and 150 ppm for the flow cell configuration and 1.5 x 10(-2)%(vol) to 19%(vol) in the in situ configuration.
